What is Sparta's currency?

Excuse me, could you please clarify what you mean by Sparta's currency? Sparta was an ancient Greek city-state that existed several thousand years ago. To my understanding, they did not have a modern currency system as we know it today. They likely used various forms of barter, metals like gold and silver, or even coins minted by other city-states or kingdoms. If you're referring to a specific modern context or cryptocurrency named Sparta, I'd be happy to help answer your question about that. Could you please provide more context or clarification?